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Tag: Astronomy

A spiral galaxy with a yellow dot in the center and blue and white dots spiraling out from the center

Universe-Sized Questions: Dark Matter, Dark Energy, and the Big Bang

Wednesday September 28th
Michelle Nichols and Geza Gyuk

Header Image: This is NGC 1365, the barred spiral galaxy a part of the Fornax Cluster. Image Credit: NASA/JPL-Caltech/SSC Dark matter. What is it? Why can’t we see it? And how is it related to dark energy and the Big Bang? Every day, we (the astronomers at the Adler Planetarium) get asked curious questions about […]

This is an image showing the outside of the Adler Planetarium in Chicago, IL at sunset in the fall.

Astronomy and Space Facts From A to Z

Wednesday August 24th
Colleen Cesaretti

Header Image: The outside of the Adler Planetarium in Chicago, IL at sunset in the fall. When you were a kid, you probably learned your ABC’s using stuff like, “A is for…apple” or “B is for…bee” or “C is for…cat” to represent each letter. While those options are all fine and good and cute, what if […]

JWST: The Most Powerful Infrared Space Telescope Humans Have Ever Created

Tuesday July 12th
Michelle Nichols and Geza Gyuk

Header Image: The Cosmic Cliffs in NGC 3324, also known as the Carina Nebula. This image was taken by the JWST and shows cosmic dust and gas a part of the nebula, but also previously obscured star nurseries and stars that we can now see with the space telescope’s infrared light. Image Credit: NASA, ESA, […]

Image taken of Venus by NASA's Mariner 10 spacecraft in 1974 Image Credit: NASA/JPL-Caltech

Adler Skywatch: February 2022

Thursday January 20th
Karen Donnelly

Header Image: Venus by NASA’s Mariner 10 spacecraft in 1974 Image Credit: NASA/JPL-Caltech The brightest planet in the sky gets even brighter than usual this month, February 2022. The planet Venus reaches its greatest brilliance for the entire year this month. Look for Venus very low in the southeast at the start of morning twilight. […]

Jupiter and two of its Moons, Io and Ganymede

Adler Skywatch: January 2022

Tuesday December 21st
Karen Donnelly

Header Image: Jupiter and two of its Moons, Io and Ganymede The Earth’s closest point to the Sun for the year and a major meteor shower are highlights for this month, January 2022. Perihelion, or the point in Earth’s orbit when it’s closest to the Sun, occurs at 12:52 am CST the morning of January […]

Eclipse of the Sun illustration from the Adler Planetarium's collections

Solar Eclipses and Lunar Eclipses Explained

Wednesday April 28th
Michelle Nichols

Header Image: Eclipse of the Sun illustration from the Adler Planetarium’s Collections Editor’s Note: This blog was originally published in April 2021 and was updated in April 2022 with more current information. There are several topics in astronomy that get lots of people excited: naked-eye visible comets, bright planets, auroras…but eclipses are generally at the […]

Jupiter and two of its Moons, Io and Ganymede

Adler Skywatch: December 2020

Thursday November 26th
Karen Donnelly

Header Image: Jupiter and two of its Moons, Io and Ganymede. Image Credit: NASA/Damian Peach To end this unprecedented year, we’ll all get to celebrate beneath a “Great Conjunction” in December 2020. For the past six months, the brilliant planet Jupiter and the dimmer (but still bright) planet Saturn have appeared several degrees away from […]

The Adler Planetarium with the Moon, Jupiter and Saturn in the background.

Adler Skywatch: November 2020

Monday November 2nd
Karen Donnelly

Header Image: The outside of the Adler Planetarium at night with the Moon, Jupiter and Saturn brightly lit in the background. Image Credit: Mike Smail Many of us lost an hour earlier this year, but we get back that hour this month, November 2020! Most of the United States uses Daylight Saving time, which starts […]

Astrophotography picture of the Moon

What Is A Blue Moon?

Tuesday October 20th
Michelle Nichols

Header Image: Astrophotography picture of the Moon. Image Credit: Nick Lake What, exactly, is a blue moon, and how rare is it? This question seems like it should have a straightforward answer, but as with all things related to language, it’s complicated. Absurd, Impossible, or Rare? The phrase blue moon has been around for several […]

The Andromeda Galaxy taken by astrophotographer Nick Lake

Space Poetry

Thursday October 8th
Colleen Cesaretti

Image Caption: The Andromeda Galaxy taken by an astrophotographer. Image Credit: Nick Lake From galactic paintings to space poetry, everyone’s favorite out-of-this-world muse—aka our universe—inspires all kinds of stellar works of art. Our staff came together and composed a few short poems all about aspects of space that inspire them. STAGES In my youth, I […]

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